• Modulate

    Origin

    From Latin modulatus, past participle of modulari ("to measure, regulate, modulate"), from modulus ("measure"); see modulus. Compare module. Surface etymology: module + -ate

    Full definition of modulate

    Verb

    1. (transitive) To regulate, adjust or adapt
    2. (transitive) To change the pitch, intensity or tone of one's voice or of a musical instrument
    3. (transitive, electronics) to vary the amplitude, frequency or phase of a carrier wave in proportion to the amplitude etc of a source wave (such as speech or music)
    4. (intransitive, music) to move from one key or tonality to another, especially by using a chord progression
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